1. The Relationship of Personality to Affective Disorders
2. Depressive Disorders: Toward a Unified Hypothesis
3. American Psychiatric Association. (1980). Diagnostic and statistical manual of mental disorders (3rd ed.).Washington, DC: Author.
4. Baldessarini, R. (1983). Aspects of depression and its treatment.Washington, DC: American Psychiatric Press.
5. Beck, A. T. (1967).Depression: Clinical, experimental, and theoretical aspects. New York: Harper &Row.